Return a Resource with ``path`` loaded from the disk cache.
(self, path)
| 934 | |
| 935 | # TODO: consider adding a small LRU cache in front of this for perf? |
| 936 | def _load_resource(self, path): |
| 937 | """ |
| 938 | Return a Resource with ``path`` loaded from the disk cache. |
| 939 | """ |
| 940 | path = clean_path(path) |
| 941 | cache_location = self._get_resource_cache_location(path, create_dirs=False) |
| 942 | |
| 943 | if TRACE: |
| 944 | logger_debug( |
| 945 | " Codebase._load_resource: exists:", |
| 946 | exists(cache_location), |
| 947 | "cache_location:", |
| 948 | cache_location, |
| 949 | ) |
| 950 | |
| 951 | if not exists(cache_location): |
| 952 | raise ResourceNotInCache(f"Failed to load Resource: {path} from {cache_location!r}") |
| 953 | |
| 954 | # TODO: consider messagepack or protobuf for compact/faster processing |
| 955 | try: |
| 956 | with open(cache_location, "rb") as cached: |
| 957 | # TODO: Use custom json encoder to encode JSON list as a tuple |
| 958 | # TODO: Consider using simplejson |
| 959 | data = json.load(cached) |
| 960 | return self.resource_class(**data) |
| 961 | except Exception as e: |
| 962 | with open(cache_location, "rb") as cached: |
| 963 | cached_data = cached.read() |
| 964 | msg = ( |
| 965 | f"ERROR: failed to load resource from cached location: {cache_location} " |
| 966 | "with content:\n\n" + repr(cached_data) + "\n\n" + traceback.format_exc() |
| 967 | ) |
| 968 | raise Exception(msg) from e |
| 969 | |
| 970 | def _remove_resource(self, resource): |
| 971 | """ |
no test coverage detected